squid代理服务器泄露客户ip和服务器信息的解决

在局域网通过透明代理访问外部的web服务器时,
在web服务器端,
通过header  HTTP_X_FORWARDED_FOR 可以知道代理服务器的服务器名以及端口,
通过HTTP_VIA可以知道客户的内部ip,这会带来一些安全问题,并且某些论坛会发现用的是代理访问,怎么让squid隐藏这些信息呢.
通过研究squid的源代码,发现在/etc/squid/squid.conf中添加2行:
header_access Via deny all
header_access X-Forwarded-For deny all
就可以把它关闭

（king9413注：新版本命令为：

via off
forwarded_for off

）

要去掉其他的header,也可以照此操作:

Accept HTTP_ACCEPT 
Accept-Charset HTTP_ACCEPT-CHARSET 
Accept-Encoding HTTP_ACCEPT-ENCODING 
Accept-Language HTTP_ACCEPT-LANGUAGE 
Accept-Ranges HTTP_ACCEPT-RANGES 
Age HTTP_AGE 
Allow HTTP_ALLOW 
Authorization HTTP_AUTHORIZATION 
Cache-Control HTTP_CACHE-CONTROL 
Connection HTTP_CONNECTION 
Content-Base HTTP_CONTENT-BASE 
Content-Disposition HTTP_CONTENT-DISPOSITION 
Content-Encoding HTTP_CONTENT-ENCODING 
Content-Language HTTP_CONTENT-LANGUAGE 
Content-Length HTTP_CONTENT-LENGTH 
Content-Location HTTP_CONTENT-LOCATION 
Content-MD5 HTTP_CONTENT-MD5 
Content-Range HTTP_CONTENT-RANGE 
Content-Type HTTP_CONTENT-TYPE 
Cookie HTTP_COOKIE 
Date HTTP_DATE 
ETag HTTP_ETAG 
Expires HTTP_EXPIRES 
From HTTP_FROM 
Host HTTP_HOST 
If-Match HTTP_IF-MATCH 
If-Modified-Since HTTP_IF-MODIFIED-SINCE 
If-None-Match HTTP_IF-NONE-MATCH 
If-Range HTTP_IF-RANGE 
Last-Modified HTTP_LAST-MODIFIED 
Link HTTP_LINK 
Location HTTP_LOCATION 
Max-Forwards HTTP_MAX-FORWARDS 
Mime-Version HTTP_MIME-VERSION 
Pragma HTTP_PRAGMA 
Proxy-Authenticate HTTP_PROXY-AUTHENTICATE 
Proxy-Authentication-Info HTTP_PROXY-AUTHENTICATION-INFO 
Proxy-Authorization HTTP_PROXY-AUTHORIZATION 
Proxy-Connection HTTP_PROXY-CONNECTION 
Public HTTP_PUBLIC 
Range HTTP_RANGE 
Referer HTTP_REFERER 
Request-Range HTTP_REQUEST-RANGE 
Retry-After HTTP_RETRY-AFTER 
Server HTTP_SERVER 
Set-Cookie HTTP_SET-COOKIE 
Title HTTP_TITLE 
Transfer-Encoding HTTP_TRANSFER-ENCODING 
Upgrade HTTP_UPGRADE 
User-Agent HTTP_USER-AGENT 
Vary HTTP_VARY 
Via HTTP_VIA 
Warning HTTP_WARNING 
WWW-Authenticate HTTP_WWW-AUTHENTICATE 
Authentication-Info HTTP_AUTHENTICATION-INFO 
X-Cache HTTP_X-CACHE 
X-Cache-Lookup HTTP_X-CACHE-LOOKUP 
X-Forwarded-For HTTP_X-FORWARDED-FOR 
X-Request-URI HTTP_X-REQUEST-URI 
X-Squid-Error HTTP_X-SQUID-ERROR 
Negotiate HTTP_NEGOTIATE 
X-Accelerator-Vary HTTP_X-ACCELERATOR-VARY 
Other: HTTP_OTHER: